[llvm-commits] [llvm] r157236 - /llvm/trunk/lib/Target/X86/X86ISelLowering.cpp

[Craig Topper]

Author: ctopper
Date: Tue May 22 01:09:38 2012
New Revision: 157236

URL: http://llvm.org/viewvc/llvm-project?rev=157236&view=rev
Log:
Fix constant used for pshufb mask when lowering v16i8 shuffles. Bug introduced in r157043. Fixes PR12908.

Modified:
    llvm/trunk/lib/Target/X86/X86ISelLowering.cpp

Modified: llvm/trunk/lib/Target/X86/X86ISelLowering.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/X86/X86ISelLowering.cpp?rev=157236&r1=157235&r2=157236&view=diff
==============================================================================
--- llvm/trunk/lib/Target/X86/X86ISelLowering.cpp (original)
+++ llvm/trunk/lib/Target/X86/X86ISelLowering.cpp Tue May 22 01:09:38 2012
@@ -5805,7 +5805,7 @@
     for (unsigned i = 0; i != 16; ++i) {
       int EltIdx = MaskVals[i];
       EltIdx = (EltIdx < 16) ? 0x80 : EltIdx - 16;
-      pshufbMask.push_back(DAG.getConstant(EltIdx - 16, MVT::i8));
+      pshufbMask.push_back(DAG.getConstant(EltIdx, MVT::i8));
     }
     V2 = DAG.getNode(X86ISD::PSHUFB, dl, MVT::v16i8, V2,
                      DAG.getNode(ISD::BUILD_VECTOR, dl,